9. filetype: returns links to documents with the given file type. For example, cake filetype:pdf

10. site: restricts the results to the given domain. site:edusoftmax.com will find all indexed page on www.edusoftmax.com, while "site:edusoftmax.com cakes" will find all cakes-related pages on www.edusoftmax.com.

11. cache: shows the cached version of given webpage. Other words in the query will be highlighted in the returned page, try cache:www.edusoftmax.com cakes.

12. link: lists webpages that link to the given webpage.

13. related: returns pages that google somehow thiks are related to the given page.

14. info: returns some informations about the given web page. Typically website and description.

15. define: returns the definition of a given word. For example, define:cakes.